I have stabilized my box for 12 days now (knockonwood) with the help of this thread:
https://forums.servethehome.com/ind...e-quad-i225v-mini-pc-report.36699/post-345447
That's great news mate! I see you're running pfSense on top of Proxmox. In my experience, pfSense (FreeBSD) was much more stable than Linux VMs for whatever reason, but even when I ran the same settings as those you're using, my VM still eventually froze.